Bacterial plant pathogens affect the locomotor behavior of the insect vector:a case study of Citrus volkameriana-Triozae erytreae-Candidatus Liberibacter asiaticus system  

作　　者：Arnaud Ameline Alain Karkach Thomas Denoirjean Martial Grondin Florencia Molinari Patrick Turpin Helene Delatte Bernard Reynaud 

机构地区：[1]UMR CNRS 7058 EDYSAN(Ecologie et Dynamique des Systemes Anthropises),Universite de Picardie Jules Verne,Amiens,Cedex,France [2]UMR PVBMT(Peuplements végétaux et bioagresseurs en milieu tropical),Universitéde la Réunion,Saint Pierre,La Réunion,France

出　　处：《Insect Science》2024年第3期901-910,共10页昆虫科学（英文版）

基　　金：supported,in whole or in part,by the European Union grant,program H2020 entitled PRE-HLB:Preventing HLB epidemics for ensuring citrus survival in Europe.H2020-SFS-2018-2 Topic SFS-05-2018-2019-2020new and emerging risks to plant health(Project n°817526);the Conseil Regional de La Réunion"and the European Agricultural Fund for Rural Development(EAFRD).

摘　　要：Plant pathogens can alter the behavior of their insect vectors as well as their survival and reproduction.The African psyllid,Trioza erytreae,is one of the vectors of Huanglongbing,a citrus disease caused mainly by"Candidatus Liberibacter asiaticus"(CLas).The purpose of this study was to characterize the effects of CLas on the psyllid,T.erytreae using Citrus volkamerina plants as the study system.The study focused more specifically on the CLas effects prior to and after its acquisition by the psyllid T.erytreae.Our results did not support the hypothesis that CLas effects psyllid probing behavior prior to acquisition;few differences were observed between uninfected T.erytrea feeding on CLas-infected versus control plants.On the other hand,compared to psyllids that had completed their development on control plants,the ones that had completed their development on a CLas-infected plant exhibited changes in their behavior(greater velocity),physiology(smaller mass)and biochemistry(lower water and lipid content).Altogether,our results confirm the existence of a marked postacquisition effect on the vector locomotor behavior and a minor preacquisition effect of CLas on the vector behavior,which can be partially explained by physiological and biochemical changes.

关 键 词：electrical penetration graph HUANGLONGBING locomotory behavior lipid biomass probing behavior vector manipulation 

分 类 号：Q96[生物学—昆虫学]